Answers

Add 70/28 and 21/40

1^st number: 2 14/28, 2^nd number: 21/40

70/28 + 21/40 is 121/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 40 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 28 × 10 = 280,
   70/28 = 70 × 10/28 × 10 = 700/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   21/40 = 21 × 7/40 × 7 = 147/280
4. Add the two like fractions:
   700/280 + 147/280 = 700 + 147/280 = 847/280
5. 847/280 simplified gives 121/40
6. So, 70/28 + 21/40 = 121/40
   In mixed form: 31/40

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